Abstract
<p>This study was conducted to determine the effect of giving water contaminated with used engine oil on performance, carcass and meat characteristics of West African Dwarf (WAD) rams. 15 WAD rams about 10 months old were used. They were grouped into 5 balanced for weight. Used engine oil was collected from an Auto mechanic workshop in Ayetoro Yewa Ogun state and mixed to 0, 5, 10, 15 and 20ml with one litre of clean water at 0, 0.5, 1.0, 1.5 and 2.0% designated T0, T1, T2, T3 and T4 respectively. The rams were assigned to these treatment groups in a completely randomized design experiment and were given the contaminated water for 13 weeks. Data collected were subjected to analysis of variance (ANOVA) at p=0.05. The results showed that nutrient intake was higher, while water intake decreased (p&lt;0.05) as the level of used engine oil in water increased, nitrogen intakes and urinary nitrogen decreased (p&lt;0.05) as well as nitrogen retention. Although weight gain increased (p&lt;0.05) feed efficiency decreased (p&lt;0.05). Carcass primal cuts and meat characteristics decreased except cooking yield and water holding capacity as used engine oil increased in the given water. It was therefore, recommended that used engine oil should not be allowed to flow freely into the surrounding water bodies where grazing animals may consume it as this may lead to reduction in their water intake which can affect the health of the animals and increased feed intake can affect profit margin of the farmers.</p>
Highlights
IntroductionAnimals and plants alike need water as it is essential for their survival. The water must be free from physical chemical and microbial contamination in order to fulfill its roles.The requirement of water is high in rearing farm animals as it must be available ad-libitum even when they are grazed or consumed feeds with high water content (Adolph, 1993)
Man, animals and plants alike need water as it is essential for their survival
These results could be due to the increased level of inclusion of used engine oil in the water as the animals might need to supplement those nutrients from feed as they could be lacking in water given perhaps as a result of actions of used engine inhibiting the release of those nutrients from water
Summary
Animals and plants alike need water as it is essential for their survival. The water must be free from physical chemical and microbial contamination in order to fulfill its roles.The requirement of water is high in rearing farm animals as it must be available ad-libitum even when they are grazed or consumed feeds with high water content (Adolph, 1993). There is wide spread of water contamination in many developing countries of the world including Nigeria from different sources such as pesticides, metals, nitrates, solvents as well as used engine oil due to lack of legislation against such (CEPA, 2002). It contains several toxic components up to 30% aromatic hydrocarbons, with as much as 22 ppm benzo (a) pyrene and considerable percentage of fluoranthene (EPA, 2000). It finds its way into aquatic system through run-off water and constitutes great health hazard to grazing animals as they naturally move about and drink from any water pools under extensive management system (OECD, 2000).
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
